JPH033846Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a roaster, for example, a switch operation part of a toaster oven.

(Prior art) In this type of toaster oven, a toaster oven body is provided with a vertically movable platform that is biased upwardly by a spring, and the platform is moved against the spring that biases the platform upwardly. When the platform is lowered, the interlocking switch is closed. When the interlocking switch is closed, the heater is energized. At the same time, when the platform is in the lowered state, the electromagnet of the holding device is energized, and the platform is in the descending state. A conceivable structure is to hold the heater and open the interlocking switch when the elevator platform rises, thereby canceling the energization to the heater. In a roaster having such a structure, the holding device that maintains the descending state of the lifting platform is rotatably supported at the center and has a hook portion at one end that engages with the descending platform. A structure is proposed in which a foot lever is provided with a suction part on the other end that is attracted to an electromagnet, and the suction part of the foot lever of this holding device is attracted by the electromagnet, and the hook part of the foot lever holds the lifting platform in a lowered state. It was done.

(Problem to be solved by the invention) In the roaster having the above structure, in order to make the suction part of the foot lever of the holding device come into close contact with the suction surface of the electromagnet, the direction of rotation of the suction part of the foot lever is It is also necessary to install the electromagnet so that it can rotate freely.

However, in the roaster with the above structure, if the electromagnet is supported rotatably and a lead wire connected to the electromagnet is stretched, this lead wire will restrict the rotation of the electromagnet, and the suction part of the foot lever will There is a problem in that it is not possible to make close contact with the electromagnet. Also,
If the tension of the lead wires is loosened so that the rotation of the electromagnet is not restricted by the lead wires, electrical appliances that require that "when the lead wires are pushed with a force of 200g, they do not touch the edge of the sheet metal." There is a problem that would conflict with the provisions of the regulatory regulations.

The present invention was developed in view of the above problems, and is designed to ensure that even if the lead wire of the electromagnet is connected in a loose state so as not to impede the rotation of the electromagnet, it will not violate the requirements of the Electrical Appliance and Materials Regulations. It provides pottery.

[Structure of the idea]

(Means for Solving the Problems) The roaster of the present invention includes a roaster body that has a heater inside, and a roaster body that is movable up and down inside the roaster body and is attached upwardly by a spring. This device has a lifting platform that is energized, an interlocking switch that is closed when the lifting platform is lowered and opened when it is raised to control the energization of the heater, and an electromagnet that is energized by the closing of the interlocking switch. and a holding device that holds the lifting platform in a lowered state when the electromagnet is excited, and the holding device has a center portion rotatably supported and a hook portion at one end that engages with the lifting platform in the lowered state. A foot lever is provided at the other end with an adsorption part that is adsorbed by the electromagnet, and the adsorption part of the foot lever of the holding device is adsorbed by the electromagnet, and the lifting platform is held in a lowered state by the hook part of the foot lever. In the roaster, the electromagnet is attached to an electromagnet frame that is vertically rotatably provided in the roaster body, and the electromagnet frame has a notch that engages and supports the lead wire of the electromagnet. It is what was done.

(Function) In the roaster of the present invention, when the lifting platform positioned above is lowered by being biased upward by a spring, the lifting platform closes the interlocking switch as the lifting platform lowers, and this interlocking When the switch is closed, the heater is energized to start roasting, and at the same time, the electromagnet of the holding device is also energized and activated. Due to the excitation operation of the electromagnet, the attraction part of the foot lever of the holding device is attracted by the electromagnet, and the hook part of the foot lever resists the biasing force of the spring and holds the elevator platform in a lowered state, and with the interlocking switch closed, Keep the heater energized. Then, when roasting is completed and the electromagnet is de-energized, the electromagnet of the holding device releases the adsorption part of the foot lever, and the lifting platform is raised by the spring. The electromagnet is attached to an electromagnet frame that can freely rotate in the vertical direction, and the suction part is brought into close contact with the electromagnet by absorbing backlash that occurs between the attraction part of the foot lever and the electromagnet. In addition, the lead wire connected to this electromagnet is supported by the notch in the electromagnet frame, so it can be wired loosely, and the adsorption part of the foot lever can be tightly attached to the electromagnet without the lead wire restricting the rotation of the electromagnet frame. At the same time, the lead wires do not touch other parts.

(Example) The configuration of an example of the present invention will be described with reference to a drawing of a toaster oven as a roaster.

Reference numeral 1 denotes a toaster oven main body, which is a roaster main body, and as shown in FIGS. A side space 1c is formed, in which an electronic timer circuit board 4a having a time constant circuit formed by a capacitor, a resistor, a mechanical timer 5, etc. are arranged, and the space 1c is partitioned by a partition plate 1b. The main body 1 has a door body 6 whose lower side is pivotally attached to the front opening of the roasting chamber 1a so as to be openable and closable.

Further, a lifting platform 8 is provided in the side space 1c of the main body 1 so as to be vertically movable, and an operating lever 7 is rotatably pivoted in the vertical direction, and the lifting platform 8 moves up and down together with the operating lever 7. It is provided with an interlocking switch 9 that is closed when the platform is lowered and opened when the platform is raised, and a holding device 10 that holds the platform 8 in the lowered state.

Further, as shown in FIGS. 1, 2, and 4, a cross section approximately L is provided on the front surface of the side space 1c of the main body 1.
A letter-shaped board 11 is provided, a power switch 12 and the timer 5 are attached to the inner surface of the board 11, and the elevating table 8 is arranged to be vertically movable. Further, a decorative board 13 as a front wall is attached to the front side of this board 11. On the front side of this decorative board 13 are a switch knob 14 for the power switch 12 and a timer time setting knob 1 for the timer 5.
5. Volume knob 17 for adjusting the volume 4 that finely adjusts the timer time set by the electronic timer circuit to adjust the browning color, a pilot lamp 18 that displays the operating status, and the tip of the operating lever 7 of the lifting platform 8. section is arranged.

Further, as shown in FIGS. 1 and 4, a cord reel 19 is provided on the side surface of the main body 1.

Further, as shown in FIGS. 2 to 4, the elevating table 8 is bent into a substantially U-shape.
A shaft hole 21 is formed in each of the upper piece part 8a and the lower piece part 8b, and a front plate part 8c is formed on the front surface, and an engagement groove 8d is formed in this front plate part 8c. In addition, a shaft support hole 22 is provided on the lower side of this lifting platform 8.
is formed. Then, the substrate 11 is inserted into the shaft hole 21 of the upper piece 8a and the lower piece 8b of the lifting table 8.
A shaft 23 erected at the bottom of the platform is inserted to support the platform 8 so that it can move up and down, and a coiled spring 24 is wound around the shaft 23. The stand 8 is biased upward.

Further, a base end 25 of the operating lever 7 is rotatably supported by a shaft inserted through a shaft support hole 22 on the lower side of the lifting table 8, and this operating lever 7 is engaged with the lifting table 8. This operating lever 7 is engaged with the matching groove 8d.
The lower edge engages with the inner end of the engagement groove 8d to restrict downward rotation and allow appropriate upward rotation. Further, the end portion 26 side of the operating lever 7 is connected to a long hole 33 formed in the substrate 11.
It is inserted into a long hole 30 of the decorative board 13 formed correspondingly. An operating body 27 is attached to the tip 26 of the operating lever 7 with a screw 28 from the side, and this operating body 27 is connected to the decorative plate 13.
An upper support piece 31 located along the inside of the decorative board 13 and an upper support piece 31 located along the inside of the decorative board 13 are provided to protrude above the tip portion 26 protruding from a long hole 30 formed in the vertical direction on the front surface of the decorative board 13. It also has a lower support piece 32 located along the outside of the decorative board 13. Further, the elongated hole 30 of the decorative plate 13 is formed in a size corresponding to the lower support piece 32 of the operating body 27 when the lifting platform 8 is raised.

Although not shown, the side space 1 of the main body 1
A bell is located at the raised position of the lifting table 8 and comes into contact with the lifting table 8 when the lifting table 8 is raised.

Furthermore, the interlocking switch 9 is shown in FIGS. 2 and 4.
As shown in the figure, two long plate-shaped contact pieces 9a and 9b having spring properties are arranged vertically in parallel at regular intervals, and the upper contact piece 9a is attached to the lifting table 8 when the lifting table 8 is lowered. Insulating plate 4 engaged with 8 and pressed downward
1 is provided, and when this insulating plate 41 engages and disengages from the lifting platform 8, the contact pieces 9a and 9b are brought into contact and separated to open and close. The interlock switch 9 is electrically connected to a power supply circuit, a timer circuit, the heater 2, etc., and forms an electric circuit of the toaster oven.

The holding device 10 includes an electromagnet 51 placed near the lifting table 8 and a lever lever 52 placed between the electromagnet 51 and the lifting table 8. The electromagnet 51 is connected to the interlocking switch 9, and is energized by closing the interlocking switch 9, and de-energized by opening the electric circuit of the toaster oven by an electronic timer after a set time has elapsed. becomes.

As shown in FIGS. 6 and 7, this electromagnet 51 is attached to the lower surface of the upper plate 53 of an electromagnet frame 55 formed by an upper plate 53 and a side plate 54, and the lower surface of this electromagnet 51 is used as an attraction surface. It is said that A notch 56 is formed upward from the lower edge of the side plate 54 of the electromagnet frame 55, and a lead wire 58 is connected from within the notch 56 to the coil 67 of the electromagnet 51 and to the electric circuit of the toaster oven. extends outward. This notch 56 is provided with a support portion 59 at its tip facing in the direction in which the lead wire 58 extends, and this notch 56 is formed into a substantially L-shape. Note that the cutout portion 56
The lead wire 58 located inside is covered with an insulating protection tube 60 such as a vinyl tube.

Further, an engagement protrusion 61 is provided protrudingly from one edge of the upper plate 53 of the electromagnet frame 55, and this engagement protrusion 6
Engagement recesses 62 are formed on both sides of 1, respectively.

Further, a rectangular electromagnet support plate 63 is cut and raised on the bottom of the substrate 11, and an engagement protrusion is formed on the upper edge of the electromagnet support plate 63 in correspondence with the engagement protrusion 61 of the electromagnet frame 55. An engagement groove 64 having substantially the same width as the width between the engagement recesses 62 of 61 is formed, and the engagement groove 64 is formed from one side of the upper part of the engagement groove 64 so as to be located diagonally above the engagement groove 64. Groove 6
A locking plate 65 that closes the upper open portion of 4 is bendably extended. Then, the engagement protrusion 61 of the electromagnet frame 55 is connected to the engagement groove 64 and the locking plate 6.
5, and the locking plate 65 closes the locking groove 64, and the electromagnet frame 55 to which the electromagnet 51 is attached moves up and down by the engagement between the locking protrusion 61 and the locking groove 64. It is rotatably supported in the direction.

Further, the lead wire 5 is placed on the bottom of the substrate 11.
A locking pawl 66 for holding 8 is cut and raised.

Further, as shown in FIGS. 2, 3, and 5, the foot lever 52 is rotatably supported approximately at the center on the bottom of the base plate 11 by a shaft 71, and one end of the foot lever 52 a hook portion 72 that engages with and disengages from the base end portion 25 of the operating lever 7 of the lifting platform 8;
is provided, and this hook portion 72 is connected to the hook lever 5.
One side of a hook plate part 74 that stands up from the side of 2 is cut out to form a hook shape. Further, a plate-shaped suction portion 73 is provided at the other end of the foot lever 52 and is removably suctioned to the lower surface of the electromagnet 51. Further, an actuating portion 75 that engages with the lower edge of the base end portion 25 of the operating lever 7 is formed at the lower end of the hook plate portion 74 facing the hook portion 72 . As shown in FIGS. 2 and 3, in the holding device 10, when the lifting platform 8 is lowered together with the operating lever 7, the base end portion 25 of the operating lever 7 pushes down the actuating portion 75. Foot lever 5
2 in the counterclockwise direction in FIG. Together, the lifting platform 8 is held in a lowered state against the biasing force of the spring 24.

As shown in FIGS. 3 and 4, a timer electronic circuit board 76 connected to the timer circuit board 4a is attached to the bottom surface of the main body 1 via a partition plate 77.

Next, the operation of this embodiment will be explained.

Open the door body 6, place the object to be roasted, such as bread, on the grill 3 in the roasting chamber 1a, close the door body 6, close the power switch 12 with the switch knob 14,
Further, the volume knob 17 is used to adjust the volume 4 according to the desired browning color.

When the operating lever 7 is pushed down, the lower edge of the operating lever 7 on the base end 25 side is inserted into the engagement groove 8 of the lifting platform 8.
The operating lever 7 is prevented from rotating downward by being engaged with the inner end of the lever d, and is urged upward by the coiled spring 24 to lower the elevator platform 8 located above. When the elevator platform 8 is lowered, the insulating plate 4 provided on the upper contact piece 9a of the interlocking switch 9
1 from above to bring the upper contact piece 9a into contact with the lower contact piece 9b to close the interlocking switch, close the electric circuit of the toaster oven, and the electronic timer circuit starts timing, and also turns the heater on. At the same time that the electromagnet 51 is energized and roasting is started, the electromagnet 51 is also energized and excited. On the other hand, since the lower edge of the base end 25 of the operating lever 7 pushes down the actuating part 75 of the foot lever 52 and rotates the foot lever 52 in the counterclockwise direction in FIG. At the same time, the hook portion 72 engages with the upper edge of the base end portion 25 of the operating lever 7, and the lifting platform 8, which is urged upward by the spring 24, is held in a lowered state to maintain the closed state of the electric circuit. . During this time, the pilot lamp 18 lights up to indicate that it is in operation.

Then, when the set time of the electronic timer circuit has elapsed, the electric circuit is opened by the electronic timer circuit to cut off the power supply to the heater, the roasting is completed, the electromagnet 51 is de-energized, and the attraction part 55 is released. Therefore, the holding force of the hook portion 72 of the foot lever 52 is lost, and the base end portion 25 of the operation lever 7 comes off from the hook portion 72 due to the lifting platform 8 urged upward by the biasing force of the spring 24, and the lifting platform 8 is lifted. It rises due to the spring 24 and collides with the bell on the upper side of the lifting platform 8, causing the bell to ring.

If you want to stop roasting while the electronic timer circuit is operating, lift the operating body 27 of the operating lever 7, and the distal end 26 of the operating lever 7 will rotate upwards and move above the base end 25. Since the hook portion 72 of the foot lever 52 that engages with the edge is pushed up, the foot lever 52 rotates clockwise in FIG.
At the same time that the adsorption portion 73 is removed from the electromagnet 51 against the magnetic force, the base end portion 25 of the operating lever 7 is removed from the hook portion 72. This operation lever 7 is the hook part 7.
2, the lifting platform 8 is released from the coiled spring 24.
Therefore, the insulator 14 of the upper contact piece 9a of the interlocking switch 9, which was pressed by the lifting platform 8,
is released, the interlocking switch 9 is opened, the power supply circuit is opened, and the power to the heater is cut off.
Roasting is interrupted.

Further, since the electromagnet 51 is supported by an electromagnet frame 55 rotatably attached to an electromagnet support plate 63, the adsorption portion 7 of the foot lever 52
3, and is brought into close contact with the suction part 73. Even if the lead wire 58 of the electromagnet 51 is wired loosely so as not to restrict rotation of the electromagnet, it is fixed to the notch 56 and does not touch other members such as the substrate 11 due to external force.

[Effects of the invention] According to the invention, a notch is formed in the rotatably provided electromagnet frame, and the lead wire of the electromagnet is engaged and supported by this notch, so that the lead wire can be connected by loosening it. The rotation of the electromagnet frame to which the electromagnet is attached is not restricted, and the lead wires do not touch other members due to external force, thereby preventing accidents such as short circuits.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a roaster showing an embodiment of the present invention, Fig. 2 is an exploded perspective view of a part of the same, Fig. 3 is a front view of a part of the same with a part cut away, and Fig. 4 The figure is a partially cutaway side view of the same as the above, Figure 5 is a partially cutaway plan view of the same as the above, Figure 6 is a perspective view of the mounting part of the same as the above electromagnet, and Figure 7 is a side view of the same as the above. be. 1... Roaster body, 2... Heater, 8... Lifting platform, 9... Interlocking switch, 10... Holding device, 2
4... Spring, 51... Electromagnet, 55... Electromagnet frame, 56... Notch, 58... Lead wire.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A roaster body having a heater inside; a lifting platform provided within the roaster body so as to be movable up and down and biased upward by a spring; An interlocking switch that is closed when the elevating platform is lowered and opened when the elevating platform is raised to control the energization of the heater, and an electromagnet that is energized by the closing of the interlocking switch, and when the electromagnet is energized, the elevating platform and a holding device for holding the electromagnet in a lowered state, the holding device has a center portion rotatably supported, a hook portion at one end that engages with the elevator platform in the lowered state, and a hook portion at the other end that engages with the elevator platform in the lowered state. In the roaster, the roaster has a foot lever provided with a suction part to be attracted, and the electromagnet attracts the suction part of the foot lever of the holding device, and the lifting platform is held in a lowered state by the hook part of the foot lever. The roaster is attached to an electromagnet frame that is rotatably provided in the roaster body in the vertical direction, and the electromagnet frame is formed with a notch that engages and supports the lead wire of the electromagnet. roaster. (2) A utility model registration characterized in that the cutout portion of the electromagnet frame has a supporting portion extending in the direction in which the lead wire of the electromagnet extends and is provided substantially perpendicularly to the tip thereof, so that the entire cutout portion is formed in a substantially L-shape. A roaster according to claim 1.